Abstract
The ubiquitous nature of C–H bonds in organic molecules makes them attractive as a target for rapid complexity generation, but brings with it the problem of achieving selective reactions. In developing new methodologies for C–H functionalization, alkenes are an attractive starting material because of their abundance and low cost. Here we describe the conversion of 1-alkenes into 1,4-diols. The method involves the installation of a new Si,N-type chelating auxiliary group on the alkene followed by iridium-catalysed C–H silylation of an unactivated δ-C(sp3)–H bond to produce a silolane intermediate. Oxidation of the C–Si bonds affords a 1,4-diol. The method is demonstrated to have broad scope and good functional group compatibility by application to the selective 1,4-oxygenation of several natural products and derivatives.
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Acknowledgements
The support of the National Institute of Health (GM-64444) and the National Science Foundation (CHE-1112055) is gratefully acknowledged.
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N.G., F.S.M. and A.V.G. contributed equally to this work. N.G., F.S.M. and A.V.G. designed and performed the experiments and wrote the manuscript. C.H. performed the experiments at an early stage of the project. All authors participated in the discussion of the results. V.G. conceived and guided the research.
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Ghavtadze, N., Melkonyan, F., Gulevich, A. et al. Conversion of 1-alkenes into 1,4-diols through an auxiliary-mediated formal homoallylic C–H oxidation. Nature Chem 6, 122–125 (2014). https://doi.org/10.1038/nchem.1841
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DOI: https://doi.org/10.1038/nchem.1841
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